The 1: 1 transformer on this circuit found in a 1967 Electronics World can be wrapped around a small ferrite rod. The circuit operates with 600 to 6 000 Hz control signals.
This automatic nickel-cadmium or NiCad battery charger was found in European documentation from...
In this circuit we have the way to use a simple switch to control SCRs in a full wave system. The...
This high voltage oscillator with a neon lamp was found in a 1969 documentation. The circuit is...